Re: Which Harness do I buy?
The Engine harness on the Classic Update is only going to give you key on, Start (which you will still need), and a power wire to the coil / ditributor, that you will now use to your ECM. Do the Classic Update, it fits in your stock fuse mounting. The HWY 22 is a awesome system, and I have used them on hidden wire projects. But the fuse box is bulky and hard to hide. And you WILL create every single circuit where at least with the Classic Update, you will have some of it done for you and all the correct connectors.
I have both in stock.